Alright, let's work through 76613972 times 66616528 step by step
76613972 × 66616528 = 66616528 × (76613972)
+ 66616528 × 2 which equals 133233056
+ 66616528 × 70 resulting in 4663156960
+ 66616528 × 900 that equals 59954875200
+ 66616528 × 3000 producing 199849584000
+ 66616528 × 10000 yielding 666165280000
+ 66616528 × 600000 yielding 39969916800000
+ 66616528 × 6000000 producing 399699168000000
+ 66616528 × 70000000 that equals 4663156960000000

= 5103756810929216
